Initial PDF backend commit: directories, build rules, primitives
This change establishes and tests the building blocks of the PDF file format.
For now, PDF code is not compiled by default.
Review URL: http://codereview.appspot.com/1950044
git-svn-id: http://skia.googlecode.com/svn/trunk@600 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/PDFPrimitivesTest.cpp b/tests/PDFPrimitivesTest.cpp
new file mode 100644
index 0000000..81d8c0a
--- /dev/null
+++ b/tests/PDFPrimitivesTest.cpp
@@ -0,0 +1,176 @@
+#include <string>
+
+#include "Test.h"
+#include "SkPDFCatalog.h"
+#include "SkPDFStream.h"
+#include "SkPDFTypes.h"
+#include "SkScalar.h"
+#include "SkStream.h"
+
+static void CheckObjectOutput(skiatest::Reporter* reporter, SkPDFObject* obj,
+ const std::string& representation,
+ bool indirect) {
+ size_t directSize = obj->getOutputSize(NULL, false);
+ REPORTER_ASSERT(reporter, directSize == representation.size());
+
+ SkDynamicMemoryWStream buffer;
+ obj->emitObject(&buffer, NULL, false);
+ REPORTER_ASSERT(reporter, directSize == buffer.getOffset());
+ REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), representation.c_str(),
+ directSize) == 0);
+
+ if (indirect) {
+ // Indirect output.
+ static char header[] = "1 0 obj\n";
+ static size_t headerLen = strlen(header);
+ static char footer[] = "\nendobj\n";
+ static size_t footerLen = strlen(footer);
+
+ SkPDFCatalog catalog;
+ catalog.addObject(obj, false);
+
+ size_t indirectSize = obj->getOutputSize(&catalog, true);
+ REPORTER_ASSERT(reporter,
+ indirectSize == directSize + headerLen + footerLen);
+
+ buffer.reset();
+ obj->emitObject(&buffer, &catalog, true);
+ REPORTER_ASSERT(reporter, indirectSize == buffer.getOffset());
+ REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), header,
+ headerLen) == 0);
+ REPORTER_ASSERT(reporter,
+ memcmp(buffer.getStream() + headerLen,
+ representation.c_str(), directSize) == 0);
+ REPORTER_ASSERT(reporter,
+ memcmp(buffer.getStream() + headerLen + directSize,
+ footer, footerLen) == 0);
+ }
+}
+
+static void TestCatalog(skiatest::Reporter* reporter) {
+ SkPDFCatalog catalog;
+ SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
+ int1->unref(); // SkRefPtr and new both took a reference.
+ SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
+ int2->unref(); // SkRefPtr and new both took a reference.
+ SkRefPtr<SkPDFInt> int3 = new SkPDFInt(3);
+ int3->unref(); // SkRefPtr and new both took a reference.
+ SkRefPtr<SkPDFInt> int1Again(int1.get());
+
+ catalog.addObject(int1.get(), false);
+ catalog.addObject(int2.get(), false);
+ catalog.addObject(int3.get(), false);
+
+ REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
+ REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);
+ REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int3.get()) == 3);
+
+ SkDynamicMemoryWStream buffer;
+ catalog.emitObjectNumber(&buffer, int1.get());
+ catalog.emitObjectNumber(&buffer, int2.get());
+ catalog.emitObjectNumber(&buffer, int3.get());
+ catalog.emitObjectNumber(&buffer, int1Again.get());
+ char expectedResult[] = "1 02 03 01 0";
+ REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), expectedResult,
+ strlen(expectedResult)) == 0);
+}
+
+static void TestObjectRef(skiatest::Reporter* reporter) {
+ SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
+ int1->unref(); // SkRefPtr and new both took a reference.
+ SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
+ int2->unref(); // SkRefPtr and new both took a reference.
+ SkRefPtr<SkPDFObjRef> int2ref = new SkPDFObjRef(int2.get());
+ int2ref->unref(); // SkRefPtr and new both took a reference.
+
+ SkPDFCatalog catalog;
+ catalog.addObject(int1.get(), false);
+ catalog.addObject(int2.get(), false);
+ REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
+ REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);
+
+ char expectedResult[] = "2 0 R";
+ SkDynamicMemoryWStream buffer;
+ int2ref->emitObject(&buffer, &catalog, false);
+ REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult));
+ REPORTER_ASSERT(reporter, memcmp(buffer.getStream(), expectedResult,
+ buffer.getOffset()) == 0);
+}
+
+static void TestPDFPrimitives(skiatest::Reporter* reporter) {
+ SkRefPtr<SkPDFInt> int42 = new SkPDFInt(42);
+ int42->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, int42.get(), "42", true);
+
+ SkRefPtr<SkPDFScalar> realHalf = new SkPDFScalar(SK_ScalarHalf);
+ realHalf->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, realHalf.get(), "0.5", true);
+
+ SkRefPtr<SkPDFString> stringSimple = new SkPDFString("test ) string ( foo");
+ stringSimple->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, stringSimple.get(), "(test \\) string \\( foo)",
+ true);
+ SkRefPtr<SkPDFString> stringComplex =
+ new SkPDFString("\ttest ) string ( foo");
+ stringComplex->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, stringComplex.get(),
+ "<0974657374202920737472696E67202820666F6F>", true);
+
+ SkRefPtr<SkPDFName> name = new SkPDFName("Test name\twith#tab");
+ name->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, name.get(), "/Test#20name#09with#23tab", false);
+
+ SkRefPtr<SkPDFArray> array = new SkPDFArray;
+ array->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, array.get(), "[]", true);
+ array->append(int42.get());
+ CheckObjectOutput(reporter, array.get(), "[42]", true);
+ array->append(realHalf.get());
+ CheckObjectOutput(reporter, array.get(), "[42 0.5]", true);
+ SkRefPtr<SkPDFInt> int0 = new SkPDFInt(0);
+ int0->unref(); // SkRefPtr and new both took a reference.
+ array->append(int0.get());
+ CheckObjectOutput(reporter, array.get(), "[42 0.5 0]", true);
+ SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
+ int1->unref(); // SkRefPtr and new both took a reference.
+ array->setAt(0, int1.get());
+ CheckObjectOutput(reporter, array.get(), "[1 0.5 0]", true);
+
+ SkRefPtr<SkPDFDict> dict = new SkPDFDict;
+ dict->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, dict.get(), "<<>>", true);
+ SkRefPtr<SkPDFName> n1 = new SkPDFName("n1");
+ n1->unref(); // SkRefPtr and new both took a reference.
+ dict->insert(n1.get(), int42.get());
+ CheckObjectOutput(reporter, dict.get(), "<</n1 42\n>>", true);
+ SkRefPtr<SkPDFName> n2 = new SkPDFName("n2");
+ n2->unref(); // SkRefPtr and new both took a reference.
+ SkRefPtr<SkPDFName> n3 = new SkPDFName("n3");
+ n3->unref(); // SkRefPtr and new both took a reference.
+ dict->insert(n2.get(), realHalf.get());
+ dict->insert(n3.get(), array.get());
+ CheckObjectOutput(reporter, dict.get(),
+ "<</n1 42\n/n2 0.5\n/n3 [1 0.5 0]\n>>", true);
+
+ char streamBytes[] = "Test\nFoo\tBar";
+ SkRefPtr<SkMemoryStream> streamData = new SkMemoryStream(
+ streamBytes, strlen(streamBytes), true);
+ streamData->unref(); // SkRefPtr and new both took a reference.
+ SkRefPtr<SkPDFStream> stream = new SkPDFStream(streamData.get());
+ stream->unref(); // SkRefPtr and new both took a reference.
+ CheckObjectOutput(reporter, stream.get(),
+ "<</Length 12\n>> stream\nTest\nFoo\tBarendstream\n",
+ true);
+ stream->insert(n1.get(), int42.get());
+ CheckObjectOutput(reporter, stream.get(),
+ "<</Length 12\n/n1 42\n>> stream\nTest\nFoo\tBar"
+ "endstream\n",
+ true);
+
+ TestCatalog(reporter);
+
+ TestObjectRef(reporter);
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("PDFPrimitives", PDFPrimitivesTestClass, TestPDFPrimitives)